Umgubo wePutty ubunjwe kakhulu zizinto ezenza ifilimu (izinto zokubopha), izizalisi, izinto zokugcina amanzi, izithambisi, ii-defoamers, njl. Izinto eziqhelekileyo zekhemikhali yendalo kwi-putty powder ziquka: i-cellulose, i-starch efakwe i-gelatinized, i-starch ether, i-polyvinyl alcohol, umgubo we-latex osasazekayo, njl. Ukusebenza kunye nokusetyenziswa kwezixhobo ezahlukeneyo zekhemikhali kuhlalutywa nganye nganye ngezantsi.
1: Inkcazo kunye nomahluko phakathi kwefayibha, iselilulose kunye ne-cellulose ether
I-Fiber (US: I-Fiber; IsiNgesi: I-Fiber) ibhekisa kwinto eyenziwe yi-filaments eqhubekayo okanye engaqhubekiyo. Ezifana ne-plant fiber, iinwele zezilwanyana, i-silk fiber, i-synthetic fiber, njl.njl.
I-Cellulose yi-polysaccharide enkulu eyenziwe yi-glucose kwaye yeyona nto iphambili kwisakhiwo seendonga zeeseli zezityalo. Kubushushu begumbi, i-cellulose ayinyibiliki emanzini okanye kwi-organic solvents eqhelekileyo. Umxholo we-cellulose wekotoni usondele kwi-100%, nto leyo eyenza ukuba ibe ngumthombo wendalo ococekileyo we-cellulose. Ngokubanzi, i-cellulose ibalwa yi-40-50%, kwaye kukho i-10-30% ye-hemicellulose kunye ne-20-30% ye-lignin. Umahluko phakathi kwe-cellulose (ekunene) kunye ne-starch (ekhohlo):
Ngokubanzi, zombini istatshi kunye neselulosi zii-polysaccharides ze-macromolecular, kwaye ifomula yemolekyuli ingachazwa ngolu hlobo (C6H10O5)n. Ubunzima bemolekyuli ye-cellulose bukhulu kunobo bestatshi, kwaye i-cellulose inokubola ukuze kuveliswe istatshi. I-Cellulose yi-D-glucose kunye ne-β-1,4 glycoside Ii-polysaccharides ze-Macromolecular ezenziwe ziibhondi, ngelixa istatshi senziwe ziibhondi ze-α-1,4 glycosidic. I-Cellulose ngokubanzi ayinamagatsha, kodwa istatshi sinamagatsha ngamabhondi e-1,6 glycosidic. I-Cellulose ayinyibiliki kakuhle emanzini, ngelixa istatshi sinyibilika emanzini ashushu. I-Cellulose ayivani ne-amylase kwaye ayijiki luhlaza okwesibhakabhaka xa iboniswa yi-iodine.
Igama lesiNgesi le-cellulose ether yi-cellulose ether, eyinxalenye ye-polymer enesakhiwo se-ether esenziwe nge-cellulose. Yimveliso ye-chemical reaction ye-cellulose (isityalo) ene-etherification agent. Ngokwendlela yokwahlulahlula i-chemical structure ye-substituent emva kwe-etherification, inokwahlulwa ibe yi-anionic, cationic kunye ne-nonionic ethers. Ngokuxhomekeke kwi-etherification agent esetyenzisiweyo, kukho i-methyl cellulose, i-hydroxyethyl methyl cellulose, i-carboxymethyl cellulose, i-ethyl cellulose, i-benzyl cellulose, i-hydroxyethyl cellulose, i-hydroxypropyl methyl cellulose cellulose, i-cyanoethyl cellulose, i-benzyl cyanoethyl cellulose, i-carboxymethyl hydroxyethyl cellulose kunye ne-phenyl cellulose, njl. Kwishishini lokwakha, i-cellulose ether ikwabizwa ngokuba yi-cellulose, eligama lingaqhelekanga, kwaye ibizwa ngokuba yi-cellulose (okanye i-ether) ngokuchanekileyo. Indlela yokuqina ye-cellulose ether thickener I-Cellulose ether thickener yi-non-ionic thickener, eqina ikakhulu ngokufuthwa kunye nokuxinana phakathi kwee-molecules. Ikhonkco le-polymer le-cellulose ether kulula ukulibumba i-hydrogen bond namanzi emanzini, kwaye i-hydrogen bond yenza ukuba libe ne-hydration ephezulu kunye ne-inter-molecular entanglement.
Xa i-cellulose ether thickener yongezwa kwipeyinti ye-latex, ifunxa amanzi amaninzi, nto leyo ebangela ukuba ivolumu yayo yande kakhulu, nto leyo enciphisa indawo ekhululekileyo yee-pigment, ii-fillers kunye nee-latex particles; kwangaxeshanye, ii-cellulose ether molecular chains zidityaniswe ukuze zenze isakhiwo senethiwekhi esinemilinganiselo emithathu, kwaye ii-color Fillers kunye nee-latex particles zivaliwe phakathi kwe-mesh kwaye azikwazi ukuhamba ngokukhululekileyo. Phantsi kwezi ziphumo zimbini, i-viscosity yenkqubo iyaphucuka! Sifezekise isiphumo sokutyeba esasisifuna!
I-cellulose eqhelekileyo (i-ether): Ngokubanzi, i-cellulose kwimarike ibhekisa kwi-hydroxypropyl, i-hydroxyethyl isetyenziselwa kakhulu ipeyinti, ipeyinti ye-latex, kwaye i-hydroxypropyl methylcellulose isetyenziselwa i-mortar, i-putty kunye nezinye iimveliso. I-Carboxymethyl cellulose isetyenziselwa i-putty powder eqhelekileyo kwiindonga zangaphakathi. I-Carboxymethyl cellulose, eyaziwa ngokuba yi-sodium carboxymethyl cellulose, ebizwa ngokuba yi-(CMC): I-Carboxymethyl cellulose (CMC) yi-flocculent powder emhlophe engenatyhefu, engenavumba kwaye isebenza kakuhle kwaye inyibilika lula emanzini. I-alkaline okanye i-alkaline transparent viscous liquid, inyibilika kwezinye iiglue kunye nee-resin ezinyibilikayo emanzini, ayinyibiliki kwi-organic solvents ezifana ne-ethanol. I-CMC ingasetyenziswa njenge-binder, i-thickener, i-suspending agent, i-emulsifier, i-dispersant, i-stabilizer, i-size agent, njl. I-Carboxymethyl cellulose (CMC) yimveliso enemveliso enkulu, uluhlu olubanzi lokusetyenziswa, kunye nokusetyenziswa okulula phakathi kwe-cellulose ethers, eyaziwa ngokuba yi-"industrial monosodium glutamate". I-Carboxymethyl cellulose inemisebenzi yokubopha, ukuqinisa, ukuqinisa, ukuhlanganisa, ukugcina amanzi kunye nokumiswa. 1. Ukusetyenziswa kwe-sodium carboxymethyl cellulose kwishishini lokutya: i-sodium carboxymethyl cellulose ayisiyo-emulsification stabilizer elungileyo kunye ne-thickener kwizicelo zokutya, kodwa ikwanayo nokuzinza okuhle kokuqandisa kunye nokunyibilika, kwaye inokuphucula Incasa yemveliso yandisa ixesha lokugcina. 2. Ukusetyenziswa kwe-sodium carboxymethyl cellulose kwishishini lamayeza: ingasetyenziswa njenge-emulsion stabilizer kwiinaliti, i-binder kunye ne-arhente yokwenza ifilimu kwiipilisi kwishishini lamayeza. 3. I-CMC ingasetyenziswa njenge-arhente yokulwa nokuphelisa, i-emulsifier, i-dispersant, i-arhente yokulinganisa, kunye ne-glue kwiingubo. Ingenza umxholo oqinileyo wengubo usasazwe ngokulinganayo kwi-solvent, ukuze ingubo ingaqhekeki ixesha elide. Ikwasetyenziswa kakhulu kwipeyinti. 4. I-Sodium carboxymethyl cellulose ingasetyenziswa njenge-flocculant, i-arhente ye-chelating, i-emulsifier, i-thickener, i-arhente yokugcina amanzi, i-arhente yokulinganisa, izinto zokwenza ifilimu, njl. Ikwasetyenziswa kakhulu kwi-elektroniki, izibulali-zinambuzane, isikhumba, iiplastiki, ushicilelo, iiseramikhi, ishishini leekhemikhali ezisetyenziswa imihla ngemihla nakwamanye amasimi, kwaye ngenxa yokusebenza kwayo okuhle kakhulu kunye noluhlu olubanzi lokusetyenziswa, ihlala iphuhlisa amasimi amatsha okusetyenziswa, kwaye amathuba emarike abanzi kakhulu. Imizekelo yokusetyenziswa: umgubo weputty wodonga lwangaphandle ifomula umgubo weputty wodonga lwangaphakathi ifomula 1 Umgubo weShuangfei: 600-650kg 1 Umgubo weShuangfei: 1000kg 2 Isamente emhlophe: 400-350kg 2 Isitatshi esifakwe igelatin: 5-6kg 3 Isitatshi esifakwe igelatin: 5 -6kg 3 I-CMC: 10-15kg okanye i-HPMC2.5-3kg 4 I-CMC: 10-15kg okanye i-HPMC2.5-3kg Umgubo weputty owongeziweyo i-carboxymethyl cellulose CMC, ukusebenza kwesitatshi esifakwe igelatin: ① Inamandla okuqina ngokukhawuleza; ukusebenza kokubopha, kunye nokugcinwa kwamanzi athile; ② Ukuphucula amandla okulwa nokutyibilika (ukugoba) kwezinto, ukuphucula ukusebenza kwezinto, kunye nokwenza umsebenzi ube lula; ukwandisa ixesha lokuvula kwezinto. ③ Emva kokoma, umphezulu uthambile, awuwi umgubo, uneempawu ezilungileyo zokwenza ifilimu kwaye akukho mikrwelo. ④ Okubaluleke ngakumbi, umthamo uncinci, kwaye umthamo ophantsi kakhulu unokufezekisa isiphumo esiphezulu; kwangaxeshanye, iindleko zemveliso zincitshiswa malunga ne-10-20%. Kwishishini lokwakha, i-CMC isetyenziswa ekuveliseni ii-preforms zekhonkrithi, ezinokunciphisa ukulahleka kwamanzi kwaye zisebenze njenge-retarder. Nokuba kulwakhiwo olukhulu, inokuphucula amandla ekhonkrithi kwaye incede ii-preforms ziwe kwi-membrane. Enye injongo ephambili kukukrwela udonga olumhlophe kunye nomgubo we-putty, i-putty paste, enokonga izinto ezininzi zokwakha kwaye yonyuse umaleko okhuselayo kunye nokukhanya kodonga. I-Hydroxyethyl methylcellulose, ebizwa ngokuba yi-(HEC): ifomula yekhemikhali:
1. Intshayelelo kwi-hydroxyethyl cellulose: I-Hydroxyethyl cellulose (HEC) yi-non-ionic cellulose ether eyenziwe nge-cellulose yendalo yepolymer ngokusebenzisa uthotho lweenkqubo zeekhemikhali. Yipowder emhlophe okanye i-granule engenavumba, engenancasa, engenatyhefu, enokuchithwa emanzini abandayo ukuze yenze isisombululo esicacileyo esixineneyo, kwaye ukunyibilika akuchaphazeleki lixabiso le-pH. Ine-thickening, binding, dispersing, emulsifying, film-forming, suspending, absorbing, surface active, moisturizing and salty-resistant.
2. Izalathisi zobugcisa Umgangatho weprojekthi Inkangeleko Umgubo omhlophe okanye otyheli Ukutshintshwa kwe-Molar (MS) 1.8-2.8 Izinto ezinganyibilikiyo ngamanzi (%) ≤ 0.5 Ukulahleka xa komiswa (WT%) ≤ 5.0 Intsalela xa kutsha (WT%) ≤ 5.0 Ixabiso le-PH 6.0- 8.5 Ukuqina (mPa.s) 2%, 30000, 60000, 100000 isisombululo samanzi kwi-20°C. Isithathu, iingenelo ze-hydroxyethyl cellulose. Isiphumo sokuqina okuphezulu
● I-Hydroxyethyl cellulose inika iipropati ezintle zokugquma kwi-latex coatings, ingakumbi ii-PVA coatings eziphezulu. Akukho flocculation eyenzekayo xa ipeyinti ityebile.
● I-Hydroxyethyl cellulose inefuthe eliphezulu lokutyeba. Inganciphisa umthamo, iphucule uqoqosho lwefomyula, kwaye iphucule ukumelana nokukhuhla kwengubo.
Iipropati ezintle kakhulu ze-rheological
● Isisombululo samanzi se-hydroxyethyl cellulose yinkqubo engeyiyo i-Newtonian, kwaye ipropathi yesisombululo sayo ibizwa ngokuba yi-thixotropy.
● Kwimeko engashukumiyo, emva kokuba imveliso inyibilikisiwe ngokupheleleyo, inkqubo yokugquma igcina imeko yokutyeba nokuvuleka engcono kakhulu.
● Kwimeko yokugalela, inkqubo igcina i-viscosity ephakathi, ukuze imveliso ibe nokutyibilika okugqwesileyo kwaye ingatshizi.
● Xa isetyenziswa ngebrashi nerola, imveliso isasazeka lula kwi-substrate. Ilungele ukwakhiwa. Kwangaxeshanye, inokumelana okuhle nokutshiza.
● Ekugqibeleni, emva kokuba uqweqwe lugqityiwe, i-viscosity yenkqubo ibuyela kwimeko yesiqhelo ngoko nangoko, kwaye uqweqwe luyancipha ngoko nangoko.
Ukusasazeka kunye nokunyibilika
● I-Hydroxyethyl cellulose iphathwa ngokunyibilika okulibazisekileyo, nto leyo enokuthintela ukuhlangana xa kongezwa umgubo owomileyo. Emva kokuqinisekisa ukuba umgubo we-HEC usasazeke kakuhle, qala ukufunxa amanzi.
● I-Hydroxyethyl cellulose ngonyango olufanelekileyo lomphezulu ingayilungisa kakuhle isantya sokunyibilika kunye nesantya sokwanda kwe-viscosity yemveliso.
uzinzo kwindawo yokugcina
● I-Hydroxyethyl cellulose ineempawu ezilungileyo zokulwa nokungunda kwaye inika ixesha elaneleyo lokugcina ipeyinti. Ithintela ngokufanelekileyo imibala kunye nezizalisi ukuba zingahlali. 4. Indlela yokusebenzisa: (1) Yongeza ngokuthe ngqo ngexesha lokuvelisa Le ndlela yeyona ilula kwaye ithatha ixesha elifutshane. Amanyathelo ngala alandelayo: 1. Yongeza amanzi acocekileyo kwibhakethi enkulu exhotyiswe ngesixhobo sokusika esiphezulu. 2. Qala ukuxuba rhoqo ngesantya esiphantsi kwaye uhluze kancinci i-hydroxyethyl cellulose kwisisombululo ngokulinganayo. 3. Qhubeka uxuba de zonke iisuntswana zimanzi. 4. Emva koko yongeza i-antifungal agent kunye nezinye izongezo ezahlukeneyo. Ezifana nemibala, izixhobo zokusasaza, amanzi e-ammonia, njl. 5. Xuba de yonke i-hydroxyethyl cellulose ichithwe ngokupheleleyo (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokongeza ezinye izinto kwifomyula yokusabela. (2) Lungisa utywala bomama ukuze busetyenziswe: Le ndlela kukulungiselela utywala bomama ngoxinzelelo oluphezulu kuqala, uze ubongeze kwimveliso. Inzuzo yale ndlela kukuba inokuguquguquka okukhulu kwaye inokongezwa ngokuthe ngqo kwimveliso egqityiweyo, kodwa kufuneka igcinwe ngokufanelekileyo. La manyathelo afana namanyathelo (1–4) kwindlela (1): umahluko kukuba akufuneki i-agitator ene-shear ephezulu, kufuneka ezinye i-agitator ezinamandla aneleyo okugcina i-hydroxyethyl cellulose isasazeke ngokulinganayo kwisisombululo, qhubeka uvuselela ide inyibilike ngokupheleleyo ibe sisisombululo esiqinileyo. Kufuneka kuqatshelwe ukuba i-arhente ye-antifungal kufuneka yongezwe kwi-mother liquor ngokukhawuleza. V. Ukusetyenziswa 1. Isetyenziswa kwipeyinti ye-latex esekwe emanzini: I-HEC, njenge-colloid ekhuselayo, ingasetyenziswa kwi-vinyl acetate emulsion polymerization ukuphucula uzinzo lwenkqubo ye-polymerization kuluhlu olubanzi lwamaxabiso e-pH. Ekwenzeni iimveliso ezigqityiweyo, izongezo ezifana neepigments kunye nezizalisi zisetyenziselwa ukusasaza ngokulinganayo, ukuzinzisa kunye nokubonelela ngemiphumo yokuqina. Ingasetyenziswa njenge-dispersant kwiipolymers ezixhonyiweyo ezifana ne-styrene, i-acrylate, kunye ne-propylene. Isetyenziswa kwipeyinti ye-latex inokuphucula kakhulu ukusebenza kokuqina kunye nokulinganisa. 2. Ngokuphathelele ukubhola ioyile: I-HEC isetyenziswa njengesithambisi kwiidaka ezahlukeneyo ezifunekayo ekubholeni, ekulungiseni imithombo, ekuqiniseni iziseko zemithombo kunye nasekuqhekekeni, ukuze udaka lufumane ukunyibilika okuhle kunye nokuzinza. Phucula umthamo wokuthwala udaka ngexesha lokubhoboza, kwaye uthintele amanzi amaninzi ukuba angangeni kumaleko weoyile odakeni, uzinzise umthamo wokuvelisa umaleko weoyile. 3. Isetyenziswa ekwakheni nasekulungiseni izinto zokwakha: Ngenxa yomthamo wayo oqinileyo wokugcina amanzi, i-HEC sisixhobo esisebenzayo sokuqinisa kunye nesibopheleli sesamente esiludaka kunye nodaka. Ingaxutywa kwidaka ukuphucula ukunyibilika kunye nokusebenza kokwakha, kunye nokwandisa ixesha lokuphuma kwamanzi, Ukuphucula amandla okuqala ekhonkrithi kunye nokuphepha ukuqhekeka. Ingaphucula kakhulu ukugcinwa kwamanzi kunye namandla ayo okubopha xa isetyenziselwa ukuplasta iplasta, iplasta yokubopha, kunye ne-plaster putty. 4. Isetyenziswa kwi-toothpaste: ngenxa yokumelana kwayo okukhulu netyuwa kunye ne-asidi, i-HEC inokuqinisekisa uzinzo lwe-toothpaste. Ukongeza, i-toothpaste ayilulanga ukomisa ngenxa yokugcinwa kwayo kwamanzi kunye nokukwazi kwayo ukuxuba. 5. Xa isetyenziswa kwi-inki esekwe emanzini, i-HEC ingenza i-inki yome ngokukhawuleza kwaye ingangeni manzi. Ukongeza, i-HEC ikwasetyenziswa kakhulu ekuprinteni nasekudayeni ilaphu, ekwenzeni amaphepha, kwiikhemikhali zemihla ngemihla njl. 6. Amanyathelo okuphepha ukusebenzisa i-HEC: a. I-Hygroscopicity: Zonke iintlobo ze-hydroxyethyl cellulose HEC zi-hygroscopic. Umxholo wamanzi ngokubanzi ungaphantsi kwe-5% xa ushiya ifektri, kodwa ngenxa yeendawo ezahlukeneyo zokuthutha kunye nokugcina, umxholo wamanzi uya kuba phezulu kunaxa ushiya ifektri. Xa uyisebenzisa, linganisa nje umxholo wamanzi kwaye unciphise ubunzima bamanzi xa ubala. Musa ukuyibeka kwindawo engqongileyo. b. Umgubo wothuli uyaqhuma: ukuba zonke iipowders ze-organic kunye ne-hydroxyethyl cellulose dust powder zisemoyeni ngokwesilinganiso esithile, nazo ziya kuqhuma xa zidibana nendawo yomlilo. Ukusebenza ngokufanelekileyo kufuneka kwenziwe ukuze kuthintelwe umgubo wothuli emoyeni kangangoko kunokwenzeka. 7. Iinkcukacha zokupakishwa: Imveliso yenziwe ngebhegi yeplastiki edibeneyo egqunywe ngebhegi yangaphakathi ye-polyethylene, enobunzima obuyi-25 kg. Gcina kwindawo enomoya nowomileyo ngaphakathi xa ugcina, kwaye unike ingqalelo kumswakama. Nika ingqalelo ekukhuselekeni kwemvula nelanga ngexesha lokuthuthwa. I-Hydroxypropyl methyl cellulose, ebizwa ngokuba yi-(HPMC): i-hydroxypropyl methyl cellulose (HPMC) ngumgubo omhlophe ongenavumba, ongenancasa, ongenatyhefu, kukho iintlobo ezimbini ze-instant ne-non-instant, i-instant, Xa idibene namanzi abandayo, isasazeka ngokukhawuleza ize inyamalale emanzini. Ngeli xesha, ulwelo aluna-viscous. Emva kwemizuzu emi-2, i-viscous yolwelo iyanda, yenze i-colloid ebonakalayo ene-viscous. Uhlobo olungena-instant: Ingasetyenziswa kuphela kwiimveliso ze-dry powder ezifana ne-putty powder kunye ne-cement mortar. Ayinakusetyenziswa kwi-liquid glue kunye nepeyinti, kwaye kuya kubakho i-clump.
Ixesha lokuthumela: Disemba-26-2022